I stayed at Ken's apartment for two nights. I would say you get a lot of bang for your buck--you get a fridge, a TV, a hairdryer, an AC (you should request it from Ken, has extra charge), a hot/cold shower with towels and some bathroom implements, a huge bed and an extra folding one--there's even a small balcony where you could watch the locals come and go. My room was on the third floor--take note, there are no elevators, but I had help with my things upon check-in and check-out (Ken's mom carried my 22kg luggage down the stairs! Pretty strong for her age). Met his dad too--wonderful people. :)
Apartment's bit far from the city center and the MRT, but it was nice walking and seeing the hustle and bustle of a Thai neighborhood. There are taxis parked downstairs and you could easily rent a scooter from Ken or ride one of the bikes that traverse the area.
You can also ask Ken for some tips on going around--he gave me a list of the must-see temples in Ayutthaya plus where to eat in the old capital. Too bad I wasn't able to go to Pratunam Market (which he also recommended). Next time!